Comment (by Giuseppe Ficarra):

Is there information about external force as document ? I can not find it.

As far as I see, there is no documentation at all inside the thorn, not just regarding the external forcing. The only document is the paper mentioned in the README. Should we add a short latex doc describing the general purpose of the whole arrangement?

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2485/include-complex-and-real-scalar-evolution